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Perovskite manganite magnetic tunnel junctions with enhanced coercivity contrast
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10.1063/1.1995955
/content/aip/journal/apl/87/2/10.1063/1.1995955
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/2/10.1063/1.1995955
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Magnetic field dependence of magnetization at for (a) an unpatterned LSMO single layer film (150 u.c.) and (b) a LSMO (170 u.c.)∕LAO (4 u.c.)∕LSMRO (70 u.c.) trilayer film.

Image of FIG. 2.
FIG. 2.

Typical tunnel magnetoresistance responses at for (a) a LSMO∕LAO∕LSMO junction (size: ) and (b) a LSMO∕LAO∕LSMRO junction (size: ). (c) Temperature dependence of coercive field for the top (circle symbols) and bottom (square symbols) electrodes in the junctions. The open and closed symbols denote those for the LSMO∕LAO∕LSMO and LSMO∕LAO∕LSMRO junctions, respectively.

Image of FIG. 3.
FIG. 3.

(a) Junction resistance and (b) coercive field of the top electrode are plotted as a function of the inverse of junction area . The open and closed symbols denote the data for the LSMO∕LAO∕LSMO and LSMO∕LAO∕LSMRO junctions, respectively. In (a), the resistance for the LSMO∕LAO∕LSMO junctions are magnified by a factor of 5 for the clarity. In (b), the values of unpatterned films (typical size is ) obtained from measurements shown in Fig. 1 are also plotted. The dotted lines are merely guides for the eyes.

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/content/aip/journal/apl/87/2/10.1063/1.1995955
2005-07-08
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Perovskite manganite magnetic tunnel junctions with enhanced coercivity contrast
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/2/10.1063/1.1995955
10.1063/1.1995955
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